/**
Metamorfose is an interactive ecosystem, which uses computer vision
and sound analysis to define its basic rules.
Copyright (C) 2008  laboratorio (info@laboratorio.us)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

class Sprite
{
  String path;
  int numFrames;
  boolean looped;
  PImage[] frames;
  int currentFrame;

  /**
   * Class constructor
   *
   * @param _frames  the list of images previously loaded
   * @param _looped  
   */
  Sprite(PImage[] _frames, boolean _looped)
  {
    looped = _looped;
    frames = _frames;
    numFrames = frames.length;
    currentFrame = 0;
  }
  
  /**
   * Displays images
   */  
  void display()
  { 
    try {
      if (frames[currentFrame] != null) {
        int iwidth = frames[currentFrame].width;
        int iheight = frames[currentFrame].height;
        image(frames[currentFrame], 0, 0, iwidth, iheight);
      }
      if (currentFrame < (numFrames - 1)) {
        currentFrame++;
      } else if (looped) {
        currentFrame = 0;
      }
    } catch (Exception e) { 
      //println("current ==>" + currentFrame);
      //println("count ==>" + frames.length);
    }
  }

  /**
   * Checks if we are passing by the last image
   */
  boolean reachLastFrame()
  {
    if (!looped && currentFrame == (numFrames - 1)) {
      return true;
    } else {
      return false;
    }
  }
  
  /**
   * Resets the frame counter
   */  
  void reloadFrames()
  {
    currentFrame = 0;
  }
}
